Vent for a block wall



FIG. 1 is an exploded view of a vent for a block wall showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a left side elevational view thereof, the right side elevational view being a mirror image. 

An ornamental design for a vent for a block wall, as shown and described. 